Tank-car construction.



J. A. JACKSON. TANK CAR CONSTRUCTION. APPLICATION FILED JAN.2o,1s11,

Patented Dec. 2, 1913.

2 SHEETS-SHBET 1.

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J. A. JACKSON. TANK GAR CONSTRUCTION. APPLIGATION FILED 11111.20, 1911.

Patented Dec. 23, 1913.

JGHN A. JACKSON, OF CHICAGO, ILLNOIS.

TANK-CAR CONSTRUCTION.

Specification of Letters Patent.

Application led January 20, 1911.

To all w/Lom Z may concern.'

Be it known y.that l, JOHN A. JACKSON, a citizen of the United States, and a resident of Chicago, in the State of llllinois, have invented certain new and useful lmprovements in' Tank-Car Construction, of which the following is a specification.

My present invention relates t-o railway cars in general', and more particularly to cars for carrying a load movable relatively to the car underframing, and has special reference to cars for carrying large quantities of fluids. commonly termed tank cars.

The principal objects of my present invention are the provision of an improved support for the ends of the body or tank; the provision of improved yieldingly resistant abutments foradequately holding the tank in place and at the same time compensating for the hammer-likeblows of thehquid inl starting and stopping the car, to the end that the tank may neither become loosened from the framing, nor the framing itself disturbed by the blows of the tank; to provide means whereby the springs, frictional members, or other shocloabsorbing and yielding resistant members of the draft gear rigging may be utilized and further proportionally compensate for C the movement of the tank; to provide an improved means for mounting the tank relatively to the framing to thc end that it may be `most readily removed therefrom, together with such other objects as may hereinafter appear.

In attainingv the foregoing objects as well as certain further benefits and advantages to be below disclosed l have provided a construction, one embodiment of which is illustrated in the'accompanying drawing,

wherein- A Figure 1 is an elevational View of a tank vcar embodying my improvements; Fig. 2 is a sectional View taken on the line lll-ll of Fig. 1; Figs. 3 and 4 are respectively sectional views taken on the lines lll-Hl and lV-V of Fig. 2, certain portions being removed.

Referring first more particularly to Figs.

i. 1 and 2, it will be observed that l have here illustrated somewhat diagrammatically a tank car construction comprising longitudinal sill members 10 and 11 supporting' a tank 12, the sillsl0 and 11 being spaced apart to receive a draft gear rigging, one form of which is indicated in Figs. 3 and 4 to be more' fully described hereinbelow.

To provide means of engagement between the tank l2 and the draft gear rigginrfgl have made use of a pair of substantially parallel plates 14 and 15 flanged and riveted to the tank as indicated at- 16 and 17, a channel 18 being likewise interposed therebetween, riveted thereto and to the tank .as a stiffening member, and for the purpose of further stilfening the engaging members and preventing relative displacement thereof, I make use of a plate 19 and angles 2G and 2l, such angles being preferably releasably attached to the members llland 15, as well as to the plate 19, to the end that the tank may be readily demounted from engagement with the draft gear for re placement or repair of either asrcircumstances may require.

Referring now more particularly to Figs. 3 and Il, it will be observed that l have here shown my improvements applied'for use in connection with a draft gear of the well known Cardwell type, wherein a draw bar 32 carrying a coupler head Qllias rigidly connected thereto a yoke 2li within which are mounted frontadid rear followers 25 and 26 respectively carrying wedge blocks .27 and 28 uf'orking against corresponding wedge blocks 29 29, 30-3O and 31-31, slidably mounted on a transversely disposed member 3la at the outer end of which are carriage springs 32 and B3 secured thereupon as indicated at 34a-,a transverse key block passing through slots 36 and 3i' ,in the members l0 and 11 acting as a rear abutment to transmit strains to the sills r 10 and 11 when the yoke 2l has reached the limit of its rear movement.

As will be manifest upon inspection ot' Fig. 4l, the members and 15 are cut away as indicated at 40 forming bifurcated portions, in order that as the tank is brought into proper position relatively to the draft `gear rigging, such members will engage the follower blocks 25 and 26, and that the members 14 and 15 are likewise slotted as indicated at- 41 and 4t2 for the passage of the key block 35, to the end that their movement may not be impeded by such block whether the action on the device takes place through the follower block 25 or the fol-- lower block QG.

lt is to be understood that the device at the opposite end of the car to that here specifically illustrated is symmetrical with that here illustrated and that broadly considered l bave shown the application of my improvements toa draft gear rigging of the Cardwell type principally for thel purpose of convenience, since it is likewise applicable to many other types of draft gear rigging.

The operation of my invention is asvfollows: Assuming a movement of the liquid in the tank 1Q tending to move such tank relatively to the framing 10 in the direction indicated by the arrows in Fig. l such movement will be transmitted thro-ugh the menibers 14 and i5 to the follower 26 and limited by the action of the wedge blocks 28 against the blocks Q9, 30 and 3i, and by the resistance of the springs 32 and 33, to the movement of the blocks 30 and 29, with a similar action at the opposite end of the car, but should tie movement of the liquid be in a direction contrary to that indicated by the arrows in Fig. l, suclistrain would betransinitted to the follower 25 and thence through the wedge blocks 27, 29, 30 and 3l to the springs 32 and 33.

Since there is no movement between the followers 25 and 2 which will cause them to move apart farther than is indicated in Fig. 3 ofthe drawings, the application of the tank engaging means does not disturb or in any wise interfere with the action of the draft gear rigging in absorbing and transmitting pulling and builing strains in the customary manner.

it is thought that the operation of constructions embodying my -invention will be understood by those skilled in the art to which it pertains without further or particularized description.

Haring thus described my invention and illustrated its use, what l claim as new and desire to secure by Letters Patent is the following:

l. ln a car construction, in combination, a

framing, a body slidably movable relatively` to the framing, a plurality of yielding resistances one carried by the framing at each end thereof, and means carried by the body and engaging said yielding resistances, each of said yielding resistances, and said engaging means being adapted for restraining both forward and rearward movement of said body.

framing, a yielding resistance at each end ofV the framing interposed between the body and the framing, and engaging means between the body and the yielding resistance,

each of said yielding resistances and said engagingmeans being adapted for-restrain- .ing both forward and rearward movement of said body.

3. In a car construction, in combination with a framing, a body supported by the framing, and a draft gear rigging comprising a yoke, front and rear followers carried by said yoke, and a yieldingly resistant device interposed between said followers, of means carried by said body and engaging said followers, whereby shocks sustained by said body are absorbed by saidA yieldingly resistant device. g

4. In a car construction, in'combination with a framing, a. body supported by the framing, and a draft gear rigging comprising a yoke, front and rear followers carried by said yoke, and a yieldingly resistant device interposed between said followers, of a pair of oppositely disposed plates bifurcated for-engagement with said followers,

whereby shocks sustained by said body *are4 absorbed by said yieldingly resistant device.

5. In a car construction, in combination witha framing, a body supported by the framing, and a draft gear rigging comprising a yoke, front and rear followers carried by said yoke, and a. yieldingly resistant device interposedbetween said followers, of a pair of oppositely disposed plates carried by the body and bifurcated for engagement with said followers, and means for connecting said plates, whereby shocks sustained by said body are absorbed by said yieldingly resistant device and saidbody is restrained from vertical movement relatively to said draft gear rigging. l

In testimony whereof have hereunto .signed my name in the presence of the two subscribed witnesses,

Joint A. Jackson, 

